I use Win32::IEAutomation to get some informations from html on line, now i meet a problem that seems it is impossible to click the "onclick" link to redirect the page

Here is the HTML tag(redirect by click) that i need to handle

 <li class="nextpage"><a href="#" onclick="return changepage('2')">next page </a></li>

the "changepage: page is a javascript function to redirect the page

The IEAutomation only provides following options for getlink:

Valid options to use for $how:

'linktext:' - Find the link by matching the link text i.e. the text that is displayed to the user

'id:' - Find the link by matching id attribute

'name:' - Find the link by matching name attribute

'linkurl:' - Find the link by matching url attribute of the link

'class:' - Find the link by matching class attribute

seems none of them is applicable for this case, how to handle this then?